Subaqueous pile-hammer.



'. T. E; S' TURTEV\ NL sUAouEous PILE HAMMER. 'APPLICATION FILE D APR.U. 19|?.

Patented Feb. v26, 1918.

z sains-SHEET 1.

T. E. STURTEVANT.

SUBAQUEOUS PILE HAMMER.

APPLICATION FILED APR. I7. 1911.

Patented Feb. 26, '1918.

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invention.

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THOMAS E. STUETEVANT, or EovEn, NEW JERSEY, AssiGNoE momixiiinnamnnnnILL COMPANY, or DOVER, NEW JERSEY, A CORPORATION' OE'NEWGJESEY:

SUBA-QUEOUS PILE-HAMMER.

Application filed April 117, 1917. Serial No. 162,897

.7'0 all whomz't may Concern:

Be it known that I, TiioMs E. STURTE- vAxT, a citizen of the UnitedStates7 and a. resident of Dover, Morris county, and `State of NewJersey, have invented certain new y 1id useful Improvements inSiibaqueoiis Pile-Hammers, of which the following' is a specification,reference being hadv to the 4accor'npanying drawings, forming a part.

thereof.

My invention relates to improvements in pile. hammers and moreparticularly to a structure which is capable of being operated under.water. Its object is to provide a simple, rugged and eflicient apparatusfor driving vpiles and the like and to so construct the parts. thatsubmei'ging it under water will not affect its effectiveness.

In order that my invention may be. thoroughly understood I will nowproceed to describe the saine in the following specification, and thenpoint out vthe novel features thereof in appeiided claims.

Referring to the drawings: v

Figure l is a sectional side elevation of a pile hammer 'made accordingto and ernbodying my invention, the section being taken through thecenter of the apparatus.

Fig. 2 isa sectional .front elevation of the saine structure, thesection being taken von the line 22 of Fig. 1, looking in the directionof the arrows.

Fig. 3 is an elevation of a portion of the valve rod and Figs.- 4, 5 and6v are sectional plan views of the rod, the sections being taken respec.tively onl the-lines fit-4, ,5e-5 and G-tiof Fig. A. l

Figs/7, S and 9 are sectional plan views of the apparatus shown` in thelpreceding figures. the sections being taken respectively onthe Fig. 1 0is a sectional side elevation of a simple apparatus which valso embodiesthis.

lFig. 11 is a sectional' plan view of, the. structure shown in Fig. 10.

Like characters; of reference designate corresponding parts in all thefigures.;

1 l()` is -apris'niatic body of substantially square crosssection,having a central bore 11 whichfoi-rasen.engine cylinder. 1 2 is v apiston Awhich reciprocates in this cylinder,

Specification of Letters Patent. Patente and 13 is its piston ro 14 ofthis'body forms t head through which the on. .ro'd-e. and 15 is astufiing Box" hfdiriary coil'- striiction. 1 6 is the upp'v A which isrotatively Asupp e van w: nii' by brackets 18. 2 2O is a hammer guidebarreifoftli form in cross-section'as th "This has a. central bore 21foiA d'iainetei than the cylinder 11, his a hammer 4' block 22 which isafliitedto thp'istonzrod 65 and arranged to be recipi idl'l'ljyth'episton l'. Longitudinal-jg 23 are inthe bore 2l. At the lower end of'head 24 with a bore 25 1'of.,$1.1 S an l same diameter as that fof' Ithe here 2 and an upper bore 26' of.' mallene diameter. Vithin this headis an an 4l'rltrcltv 2?'. wliitfzli 'fits the bore Q5 and ha "pagkin4`rin s 28 'n This anvil block has p which projects into thel 2j; l

41 is an air passage an inlet port 4:2.L T heo'tli a -passage connected'iw" 45 is a passage between main cylinder 11,anc'l .t`l valve cylinder.46 is f tween the lower en d 0 lower part-of the valv c The valve rod 50fits posite port l5 it iscti that when in the pos' the cut away portion'fi passage from the iiiaper1 through port 45 with to exhaust. The'valvel posite port 46 as at 5Bs` position shown injF; lower `eid f, cylinder'or sii. y.

. Wliierrithe valve rod anti-clockwise direction these conditionsy willbe reversed and the upper end ofthe side into which'thefvalve rod fits,4thus holding the hammer block against rotation.

There is l1owever, a short rib 56 project` ing integrallyfrom the hammerblock into the-groove 55 and into a groove 57 in 4the valverod, the endsof which are inclined 'a suitable source of supply1 may be led turn thevalve and put it in position to'connect the upper end of thecylinder-llwith in opposite directions.' By thisarrange `ment anoscillatory rotation is impartedtoY the valve rod by the hammer blockdur-I ing its movement which causes lthe ports previously described tobe opened and closed tofactua'te the piston.` 4

v 37 is a port with which an'air tube 38 may be conncctedrthrough whichairl from through a regulating valve 39. It is to be understood thatsuitable tubes may beconnected similarly with the supplyiand exhaustports 42 and 43, f

The operationofthis device is asl follows :"-the apparatus is supportedby a cable or chain'run under sheave 172'- It-is.

lowered onto the object to bevdriven with the lower end 30 of the anvilblock'27 resting upon the object 'so that substantially the whole weightof the apparatus is upon the pile or other object to be driven. Now whenmotivelfiuid under p ressu're'yis admitted through port 42 it will beled alternately through the rotary valve to the opposite ends of thecylinder 11. If it is led first .to the lower end thereof, the piston12' will be "raised andA with it the hammer block Q2. During this partof the operation the upper end of 'the cylinder* will be connectedthrough thevalve with exhaust.

This movement ofthe hammer block will the airi supply and the lower endthereof with exhaust.` This will result in the downward movement of thehammer block which will deliver a heavy blow on the anvil block 27 atthe end of its stroke, and as thelatteris resting on a pile or somethingelse to be Vdrven, the blow will be transmitted', tothe latterobject; Itis` evident .that this operation will be repeated rapidly and continuVously as longV as motive iluidsuch as cornpressed air,-'is supplied.

lThe .construction of the device is such 30* thatfiti'swater-tight sothat when it is submerged its operation will not be retarded. thereby-The .result is that' a pile for example maybe Vdriven down underthewater level ,as :far as desired. -l

The air supplyto the hammer block barrel through'tubeBS is provided Sothat the packing rings 28.1'1eed not be Adepended' upon to kee thewaterout of the apparatus:

Air is supp ied through the regulating valve 39 at a desired pressuresufiicientto counteract the, pressure of the water due to the depth ofsubmersion-- ofthe device'. The

slots or grooves 23 provide-paths forffree of the hammer block. Thedevicevshow-n in Figs.. 1 '0, and 11 `i`s a `circulation of the airbetween lopposite`ends.

simple structure which also embodiesmy in? vention. In this structure.GO- is 'a prsmatic body having a central borer'l in whichgis a hammerblock 62. 63 is theup'perhead ofy this, device and '64; its lower head.Below this is a cupped end member 65. These parts. are held together. bythrough boltstion the,

'ends of whichA are nuts 67. 68 'are vertical guide channels on oppositesides of the' body 60, and 69 is a stuffing box in the upper A rod 70is/aliiXe-d to thehammer block 62. This extends through -the stutlingbox 69 and at its upper end 1s an eye 71. 72de a port leading`intocylinder 61 and -is-a pipe or tube through whichl air under pres;sure may-be admitted thro'ugh a regulating valve 7 4 toltfhe cylinder.The cylin'der is cu't awayas at75 to give free access of1this `air toeach end of the hammer block.

In the lowerhead 64 `is ali anvil block'SO,

provided with packing' rings8l. Its upper end 82 is of smaller diameterthan is the part which carries the packing rings and projects into arestricted opening in the head 6 4. The lower end of 'the hammer blockis also restricted in diameter as at 83 to allow it to pass freely into.the l'smaller bore 'of head 64. The lower end'' ofthe anvil block isalso of smaller diameter than'that of the central part of this membenandan annular' collar 85 of the cupped member fits around shown inthepreceding` fi ires, so far as the this lower end of the vanvil 4blockand retains ros driving andl themeans orkee lng water' out of the hammerblock. cham erjisi-con-r cerned. This apparatus, however, has no -englneand the reclprocation ofthe hammer block is to be accomplished by someoutsideagency. V The device is fdesignedtobe-used with an ordinary piledriver. It is placed betweenl lthepile driver guides, the channel 68being arranged to fit such guides'. It isithen lowered vontoa pile, thecupped member 65 l ..125 Now the pile driver engineisgconnected by arope or cable with eye 'Maand' the html;v

fitting over the upper end tl-'iereoi mer block reciprocated thereby.4 j

l have illustrated and-described two mechanisms whichembody thisinvention but do not mean to limit' myself tothesef or any other s`eciiic designs of structure but intend no'limitations otherthan thoseimposed by the appended claims.

What I claim is:

1. A casin constructed to form an elonated cham er, a reciprocatoryhammer vlock therein, an 'actuating rod atiixed to the hammer block `andextending above .said chamber, arrupper' head having a watertightbearing for the rod, and arranged to fclose the upper end of the hammerblock chamber, a lower head' at theother end of the chamber, ananvilblo'ck ,slidably fitted 'in' said lower head closing the lower endof said chamber and means for support-ing the anvil block in said lowerhead.

2. A casing constructed to form an elonated Chamber, a reciprocatoryhammer lock therein, a, portion of the inner Walls of'said casingforming guides for the hammer block, an actuating rod atiixed to thehammer block and` extending above said chamber, an upper head` having awater- 'tight bearing for the rod, said head being arranged to closeAthe upper end of the hamnierblock chamber, a lower head at the otherend ofthe chamber, having a cylindrical -bore, ananyil block slidablyfitted therein closing thelower end of said chamber andmeans forsupporting'the anvil block in said lower head.

3. A casing constructed to forni an elongated chamber,` a reciprocatoryhammer block therein, a portion of the inner walls of Said casingforniingguides for the haindrica-l reeiprocatory `nier bloei;` anactuating rod laiixed to the hammer. block and extending above said'chamber,"`an upper head. having a. watertight bearing for the rod. saidhead bein-g arranged to close the upper end ofthe hain-v nierblock'chainber, a lower head at. Ithe 'other end of thecliamber, havingan annular collar and a cylindrical bore. an anvil'block having ilcylindrical body1 portionof less'length vthan that of the bore` in said.lower head fitted in saidbore and Ahaving end portions of smaller dia1neter," t h e upper end portion of said anvil bloelrlnojeCting"intosaidan,

nulai" collar, and fan end member surrounding the lower end portion ofthe anvil block adapted to fit over the end ot a 'pile'.

L A prisinatic body having a cylindrical bore forming'anfelongatedeliainbena cylinhammer. block therein, the walls ot said bore being cnt,away long itudinallyto provide -forv free" ciifcnlation of air 'from4one end of the hammer block to thc other. aiiac tiiii'tiiigriodaix'edtothe 'hainnier block and extending above said chainber.an upper head;.having a water-tight 3 bearing for the rod, said head being ar-Laufforum block projecting into said annular colli'r,

.vvater-tight 'bearing for'the' rod, Asaid he .other end of thecl'iainbeir'h "ving-ianan blot-k. lniviiig a cylindrical bog less lengththan thatof' 'tl ie"bore i-'n "saidxliile.' and means t'oiadi'niitt'ingln desired pressure toit-he h" ranged to close the end lofthe haman end member, surroundingthe lowerend portion of the anvilblockand adaptedto t over the end of a pile, said i`1pper an d lower headsand end member having the same external shape in cross section asith'afof the prismatic body, and through bolts near the corners .of said partsfor -tyin'glthe upper head, the body, th lower head and the end membertogether.- v

5. A casing constructed to form-an elon'j gated chamber, a reciprooatoryhammer block therein, an actuating rod -axedto the hammer block andextending above ls'ad chamber, anupper head having a Water-v tightbearing for the. rod, and arranged to close the ,upper end of the hammerblock chamber, a lower head at the other end of the chamber, van anvilblock slidably sup poi-ted in said lower head c'zlosintg the "lowerf endof said-chamber, and meansy o r support-2.95 ing the anvilblockin saidlowerv head, and means for admitting air under pre's'sureto the'hanilner block' chamber.

6. A casing constructed 'to' form an clon# gated chamber, areciprocatbry hammer block therein. the linnei` walls of said: casing*formingi guides t'or thelraininer block', an. actuating rod 'atlixed tothe Lha'i'nmer block and extending above saidcha'm'benlan up per head.astiiing box' therein.' forming a.-

being' arranged tn close the upper of't linnn-ner bloei; cha'nibenjalowerflt ez'id at the` nnlar collar :india cylindrical; 're `l1() 'tirsn'ni'leraa 120 member together,

4nected with the hnlnlner block chamber 1L :regulating vulve 1n sind :In:nr supply pipe conpipe, :u1 engine cylintlel` ln said Impex' head inulinelnent. with the hummer leek chamber, :1. piston in b'nd enginelcylinder connected with the nctuntinnY rml, :in oscillatory vulve nt oneside 0l said engine cylinder, Suid rod ex- THOMAS E. STURTEVANT.

